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windows: make zlib static by default

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This commit is contained in:
Selim Sandal
2026-02-17 22:05:53 +03:00
parent 1f72df2936
commit 278e04ebd6
2 changed files with 47 additions and 9 deletions
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CMakeLists.txt
+38 -9
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@@ -18,6 +18,7 @@ option(ENABLE_OPTIM "Enable build with -O3 optimization level"
option(BUILD_STATIC "Whether or not to build with static libraries" OFF)
option(USE_PKGCONFIG "Use pkgconfig to find libraries" ON)
option(LINK_CMAKE_THREADS "Use CMake find_package to link the threading library" OFF)
option(WINDOWS_STATIC_ZLIB "Link zlib statically for Windows builds" ON)
if (${CMAKE_SYSTEM_NAME} MATCHES "Windows")
set(ENABLE_UDEV OFF)
@@ -223,16 +224,44 @@ if (USE_PKGCONFIG)
endif()
# zlib support (gzip)
pkg_check_modules(ZLIB zlib)
if (NOT ZLIB_FOUND)
# try zlib-ng
pkg_check_modules(ZLIB zlib-ng)
if (ZLIB_FOUND)
add_definitions(-DHAS_ZLIBNG)
else()
message(FATAL_ERROR "Could find ZLIB")
if (${CMAKE_SYSTEM_NAME} MATCHES "Windows")
if (WINDOWS_STATIC_ZLIB)
set(ZLIB_USE_STATIC_LIBS ON)
endif()
endif(NOT ZLIB_FOUND)
# Use CMake zlib finder for Windows builds to avoid host pkg-config contamination
# during cross-compilation and to allow static linking selection.
find_package(ZLIB QUIET)
if (NOT ZLIB_FOUND)
if (windows_crosscompile)
message(FATAL_ERROR
"zlib for Windows target not found. Install MinGW zlib development files "
"(for example: libz-mingw-w64-dev on Debian/Ubuntu or mingw64-zlib on Fedora).")
else()
message(FATAL_ERROR
"zlib for Windows build not found. Install zlib development files for your "
"Windows toolchain.")
endif()
endif()
if (WINDOWS_STATIC_ZLIB AND ZLIB_LIBRARIES MATCHES "\\.dll\\.a$")
message(FATAL_ERROR
"Static zlib requested (WINDOWS_STATIC_ZLIB=ON), but CMake selected "
"'${ZLIB_LIBRARIES}'. Install static zlib (for example mingw64-zlib-static) "
"or set -DWINDOWS_STATIC_ZLIB=OFF.")
endif()
else()
pkg_check_modules(ZLIB zlib)
if (NOT ZLIB_FOUND)
# try zlib-ng
pkg_check_modules(ZLIB zlib-ng)
if (ZLIB_FOUND)
add_definitions(-DHAS_ZLIBNG)
else()
message(FATAL_ERROR "Could find ZLIB")
endif()
endif(NOT ZLIB_FOUND)
endif()
if (ENABLE_UDEV)
pkg_check_modules(LIBUDEV libudev)